Methanol-Triggered Vapochromism Coupled with Solid-State Spin Switching in a Nickel(II)-Quinonoid Complex.
Paramita KarMasaki YoshidaYasuhiro ShigetaAkane UsuiAtsushi KobayashiTakaaki MinamidateNoriaki MatsunagaMasako KatoPublished in: Angewandte Chemie (International ed. in English) (2017)
A highly methanol-selective vapochromic response has been realized in a NiII -quinonoid complex, [Ni(HLMe )2 ] (H2 LMe =4-methylamino-6-methyliminio-3-oxocyclohexa-1,4-dien-1-olate) which exhibits a reversible structural transformation including a coordination geometrical change between the square-planar and octahedral structure by the selective uptake of methanol vapor. This was accompanied by a remarkable color change between purple and orange, as well as temperature-robust spin-state switching in the solid state under ambient conditions. It is remarkable that the properties are derived by the fine structural modification of the quinonoid ligand such as methyl or ethyl analogues. Such a system has high potential for applications in memory devices as well as chemical sensors and smart responsive materials.
Keyphrases
- solid state
- carbon dioxide
- air pollution
- density functional theory
- room temperature
- transition metal
- single molecule
- particulate matter
- working memory
- metal organic framework
- cancer therapy
- molecular docking
- low cost
- ionic liquid
- risk assessment
- molecular dynamics
- structure activity relationship
- climate change
- gold nanoparticles
- oxide nanoparticles